from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An avifauna; a bird.
from The Century Dictionary and Cyclopedia
- n. An avifauna; the fauna of a region in so far as it is composed of birds: as, the ornis of South America; a rich and varied ornis.
From German Ornis, from Ancient Greek ὄρνις (ornis, "bird") (Wiktionary)